Pests Of Jatropha

Jatropha Curcas is acquiring importance commercially as the demand of nonrenewable fuel sources increases tremendously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel alternative and it is also really cost-effective compared to other fuels. Recently, jatropha curcas is facing some problem with insects and diseases. The insects are categorized into two varieties: Pest that impact young plants and Pest that affect grown plants.

Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.

Agrotis ipsilon: It is typically referred to as Cut worm. This pest affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant entirely.

Control: This bug can be controlled by selecting the larva discovered around the plants or by mixing the bran, sawdust with insecticides.

Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva takes in the natural matters present in the soil and then pertains to the root. The larva attack might kill the entire plant.

Control: The plant with excellent resistance power can get rid of the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to eliminate the pest.

Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The extreme infection might completely eliminate the plants.

Control: Insecticides are used to control the insects.

Grasshopper: This prevails pest found in several plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest typically assaults the young plant.

Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This pest damages the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this bug typically drop. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide typically utilized to manage this bug is carbofuran.

Pest of leaf: The common pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

Leaf Caterpillar: This bug can consume all the leaves of the plant simply put duration. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be controlled by choosing the old larvae around the area and discarding the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when allowed to exposure to skin as it produces particular chemical substance. Initially the bug crowded in the leaf and then spread out all over the plant when it ages.

Control: Manually, the pest can be eliminated just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.

Leaf Hopper: This insect is discovered primarily in tropical and subtropical regions. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and die.

Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The pest presence can be identified when the leaf become yellow-colored, diminishes, reddens and fall down. The insect can also be spread out through fallen leaves.

Control: Some preventive measures can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.

Some terrible pest which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious bug which attacks the plant during bloom duration so the crop yield completely falls down. This pest is seen around the tropical area.

The hazardous enzyme in the plant diminishes the whole plant.

Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The pests commonly happens attacks the plant in flowering season and this bug is seen commonly in tropical regions. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant pointers.

Control: Manually, the assaulted seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.